body{
    background-size: cover;
    padding-top: 240px;
}

#egg{
    padding: 0;
}

#egg li{
    list-style-type: none;
    width: 33.3%;
    float: left;
    text-align: center;
    position: relative;
}

#egg li img.egg_0{
    width: 100%;
}

#egg li img.egg_1{
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    opacity: 0;
    display: none;
}

#egg li.on img.egg_1{
    display: block;
}

#egg li img.hammer{
    position: absolute;
    left: 0;
    top: 20%;
    width: 50%;
    transform-origin: 0 100%;
    opacity: 0;
    /*transform: rotate(-20deg);*/
    /*animation:hammer 1s;*/
}

#egg li.on img.hammer{
    opacity: 1;
    animation: hammer 1s;
}

@keyframes hammer
{
    0%{
        transform: rotate(-20deg);
        opacity: 1;
    }
    100%{
        transform: rotate(0deg);
        opacity: 1;
    }
}